globalchange  > 科学计划与规划
DOI: 10.1002/2016GL068240
论文题名:
The dry season intensity as a key driver of NPP trends
作者: Murray-Tortarolo G.; Friedlingstein P.; Sitch S.; Seneviratne S.I.; Fletcher I.; Mueller B.; Greve P.; Anav A.; Liu Y.; Ahlström A.; Huntingford C.; Levis S.; Levy P.; Lomas M.; Poulter B.; Viovy N.; Zaehle S.; Zeng N.
刊名: Geophysical Research Letters
ISSN: 0094-9232
EISSN: 1944-8963
出版年: 2016
卷: 43, 期:6
起始页码: 2632
结束页码: 2639
语种: 英语
英文关键词: drought ; dry season length ; land carbon cycle
Scopus关键词: Climate change ; Ecology ; Ecosystems ; Vegetation ; Carbon cycles ; Dry seasons ; Net primary productivity ; Vegetation productivity ; Water availability ; Water flux ; Wet season ; Drought ; carbon cycle ; climate change ; drought ; dry season ; net primary production ; phytomass ; precipitation (climatology) ; trend analysis ; water availability ; water flow
英文摘要: We analyze the impacts of changing dry season length and intensity on vegetation productivity and biomass. Our results show a wetness asymmetry in dry ecosystems, with dry seasons becoming drier and wet seasons becoming wetter, likely caused by climate change. The increasingly intense dry seasons were consistently correlated with a decreasing trend in net primary productivity (NPP) and biomass from different products and could potentially mean a reduction of 10-13% in NPP by 2100. We found that annual NPP in dry ecosystems is particularly sensitive to the intensity of the dry season, whereas an increase in precipitation during the wet season has a smaller effect. We conclude that changes in water availability over the dry season affect vegetation throughout the whole year, driving changes in regional NPP. Moreover, these results suggest that usage of seasonal water fluxes is necessary to improve our understanding of the link between water availability and the land carbon cycle. ©2016. American Geophysical Union. All Rights Reserved.
URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84988352967&doi=10.1002%2f2016GL068240&partnerID=40&md5=5748bd2441b0f13e6b14c2d293c579ef
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/10195
Appears in Collections:科学计划与规划
气候变化与战略

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作者单位: College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, United Kingdom

Recommended Citation:
Murray-Tortarolo G.,Friedlingstein P.,Sitch S.,et al. The dry season intensity as a key driver of NPP trends[J]. Geophysical Research Letters,2016-01-01,43(6).
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